773240487 has 4 divisors (see below), whose sum is σ = 1030987320. Its totient is φ = 515493656.

The previous prime is 773240483. The next prime is 773240497. The reversal of 773240487 is 784042377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 773240487 - 2² = 773240483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773240483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128873412 + ... + 128873417.

It is an arithmetic number, because the mean of its divisors is an integer number (257746830).

Almost surely, 2^773240487 is an apocalyptic number.

773240487 is a deficient number, since it is larger than the sum of its proper divisors (257746833).

773240487 is a wasteful number, since it uses less digits than its factorization.

773240487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257746832.

The product of its (nonzero) digits is 263424, while the sum is 42.

The square root of 773240487 is about 27807.2020706867. The cubic root of 773240487 is about 917.8496117817.

The spelling of 773240487 in words is "seven hundred seventy-three million, two hundred forty thousand, four hundred eighty-seven".